Outlines the principles of user control, pacing, design quality, frame-oriented messaging, self-evident structure, self-contained components, and visual information in interactive videodisc design. The concepts of user friendliness, normal path and user-interrupt interactions, and screen design are also discussed. (MBR)

Brief description of videotex systems is followed by recommendations for the design of database structure, command language, and screen format. How users search through the database is described and evaluations of the underlying tree structure are reviewed. Information sources on other aspects of videotex besides usability are listed. (MBR)

Discusses factors that should be considered when comparing microcomputer software for small and medium-sized library catalogs and describes eight specific packages--BRS/Search Micros/Mini Version, Card Catalog, Golden Retriever, INMAGIC, TEQLIB, FINDER, SCIMATE, and STAR. (Author/MBR)

Provides an overview of the potential of hypermedia as an instructional medium and discusses research that has investigated learning outcomes. Discusses instructional design considerations to guide developers and designers of hypermedia systems, including learner characteristics and elements of content presentation such as text structure,…